nvidia/cosmos-framework · .claude/skills/cosmos3-post-training/SKILL.md

cosmos3-post-training skillA

cosmos3-post-training is agent-read markdown (skill) from nvidia/cosmos-framework: Guide users through Cosmos3 supervised fine-tuning (SFT) post-training: preparing the example dataset and Wan2.2 VAE, converting the base checkpoint to DCP, launching distributed training (paired launch shell recommended, raw `torchrun` as an alternative), running T2V/I2V/V2V inference with the trained DCP checkpoint, and optionally exporting it to Hugging Face safetensors. Use when the user asks how to post-train Cosmos3, fine-tune on a custom video dataset, export a trained checkpoint, or invo.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add nvidia/cosmos-framework/cosmos3-post-training@git:20260601.1bd5fdc
Exact content
mdr add nvidia/cosmos-framework/cosmos3-post-training@sha256:65107bb779c36294

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

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Versions

versioncommittedcommitsizeaudit
git:20260601.1bd5fdc latest2026-06-01 1bd5fdc 11,030 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (11030 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

nvidia/cosmos-framework · 530 stars · license NOASSERTION · pushed 2026-09-17 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_saqvevkdpg6nkyh2
GET https://markdownregistry.com/api/v1/resolve?ref=nvidia/cosmos-framework/cosmos3-post-training
GET https://markdownregistry.com/api/v1/blob/65107bb779c36294e36ad5b454a513c1f80f65a0de2fb3c057841ebb42e8a12f

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.